Above all other players, domestic and foreign, he has been the catalyst for Leinster rise to European superpower.

It was at his suggestion that Leinster eventually employed Joe Schmidt out of Clermont-Auvergne in what was the biggest coaching coup for Leinster and Irish rugby.

All that is left is for Leinster to repay the debt of gratitude with one, or maybe even two, more medals to add to those which he has already.

"It is hard to articulate the impact that both Isa and Richardt have had on this club since their arrival," said Cullen.

"Warriors on the pitch and wonderful men off it, they are, in my opinion, two of the best players to have ever worn the blue jersey. Their impact on this group of players will be felt for years to come.

"We will also say goodbye this evening to Peadar and Cathal who have come through the Leinster pathway and are two great examples of that route and the success that can be had if you apply yourself in the right way. I wish them all the very best of luck in their future endeavours."